Companion cells transport of photosynthetic products from producing cells in mature leaves to the sieve elements in the minor veins of the leaf. There are at least three different types of companion cells in the minor veins of mature, exporting leaves, All three cell types have dense cytoplasm and abundant mitochondria;

TLS Online TPP Program

#Question id: 10404

#I Life Science/ Life Sciences Group – I-V

PIFs promote etiolated development in the dark phenomenon known as

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#Question id: 1310

#SCPH28 | Zoology

In some tissues subject to mechanical stress, special junctions which connect the cytoskeletons of adjacent cells.

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#Question id: 14477

#SCPH28 | Zoology

Probability of a card drawn at random from an ordinary pack of cards to be club card is

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#Question id: 4344

#SCPH05 I Biotechnology

How does the transcription of structural genes in an inducible operon occur?

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#Question id: 9182

#SCPH06 I Botany

Imagine that a deep temperate zone lake did not turn over during the spring and fall seasons. Based on the physical and biological properties of limnetic ecosystems, what would be the difference from normal seasonal turnover?